Is there a way to inspect the pending queue size?

Question

RepoPilot · Accepted Answer

Yes, you can inspect the pending queue size using the `limit.pendingCount` property.

According to [index.d.ts:L8-L10], `pendingCount` is a readonly property that returns:

> The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).

This is useful for monitoring how many tasks are queued but haven't started execution yet. For example, in [test.js:L185], the test demonstrates checking `pendingCount` after queuing multiple tasks:

```js
Array.from({length: 3}, () => limit(() => delay(1000)));
await Promise.resolve();
t.is(limit.pendingCount, 3);
```

You can also pair this with `limit.activeCount` [index.d.ts:L3-L5] to get a complete picture of the limiter's state—how many tasks are currently running versus how many are waiting.

FOLLOW_UPS:
- How does clearQueue affect pending tasks?
- What's the difference between activeCount and pendingCount?
- Can you dynamically change the concurrency limit?